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15 Cards in this Set
- Front
- Back
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Cartography |
Art, science and techniques of making maps or charts. |
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Formal map |
Those prepared according to well-established cartographic conventions. |
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Transitory map |
Map used to display, analyze, edit, and query geographic data and may not conform to standard cartographic conventions. |
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Reference map |
General information map Examples: topographic, highway, political, terrain) |
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Thematic map |
Depicts specific geographic themes. Examples: population, soils, climate zones, flood districts |
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Exogenous data method |
Schemes in which values not related to the way the data are arrayed are chosen to subdivide into groups. |
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Arbitrary data method |
Method that uses regular, rounded numbers having no particular relevance to the distribution of data. |
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Idiographic data method |
Method determined by particular events in the data set Examples: natural (jenks) breaks, quantile |
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Serial data method |
Various statistical methods Examples: standard deviation, arithmetic progression, geometric progression |
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DLM |
Digital landscape model It represents the landscape in the GI database as a collection of features that are independent of any map-product representation. |
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DCM |
Digital cartographic model It derives cartographic representations from real-world features. |
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What are the limitations of the map in a digital world? |
Paper map is of fixed scale. Paper map is of fixed extent. Most paper maps present a static view of the world Paper map is flat and limited for its display of 3D data. Paper maps suggest a complete view of the world. Paper maps provide a single, map-producer-centric view of the world. |
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Which 4 of 7 principles of map design do you think are the most important? |
Purpose - it determines what is mapped and how information is portrayed.
Available data - they can possess certain characteristics affecting the overall design.
Audience - to whom the map is directed may dictate specific changes to the way information is portrayed.
Technical limits - the display medium of the map and the limits of screen resolution, printed size, and bandwidth for displays. |
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Describe how visual symbols might be distinguished based on at least 3 variables of display. |
Size and orientation of points and lines - distinguish between values or ordinal and interval/ratio attributes Hue - refers to color and it's used to distinguish nominal categories Saturation - indicates variations in ordinal, interval or ratio |
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Describe a few conventions of use for dot-density, proportional circles, and choropleth maps. |
Dot-density map - Number of people in the US by county in 2010 - Earthquake epicenters across the Pacific over the past 10 years - Number of hectares of land treated for fungal control
Proportional symbols (circles) - Location and magnitude of earthquakes in Nevada 1900-2010 - Liters of coffee consumed per capita in 2010 by country - Elevation of cities in California
Choropleth map - Show percentage change in skin cancer from 1990-2010 - Percentage of population under 18 years of age - Income tax rates by country |
